Messages in this thread | | | Date | Tue, 2 Mar 2021 14:02:52 -0800 | From | Fangrui Song <> | Subject | Re: [PATCH 2/2] Makefile: Only specify '--prefix=' when building with clang + GNU as |
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On 2021-03-02, Nathan Chancellor wrote: >When building with LLVM_IAS=1, there is no point to specifying >'--prefix=' because that flag is only used to find the cross assembler, >which is clang itself when building with LLVM_IAS=1. All of the other >tools are invoked directly from PATH or a full path specified via the >command line, which does not depend on the value of '--prefix='. > >Sharing commands to reproduce issues becomes a little bit easier without >a '--prefix=' value because that '--prefix=' value is specific to a >user's machine due to it being an absolute path. > >Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
clang can spawn GNU as (if -f?no-integrated-as is specified) and GNU objcopy (-f?no-integrated-as and -gsplit-dwarf and -g[123]).
With LLVM_IAS=1, these cases are ruled out.
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